Moses ducharme



UNITED STATES PATENT OFFICE.`

MOSES DUCHARME, `OF OOHOES, NEIV` YORK, ASSIGNOR TO HIMSELF AND GEO. DUOHARME,

OF SAME PLACE.

LOCK.

Specification of Letters Patent No. 32,384, dated May 14, 1861.

To all whom 'it may concern:

Be it known that I, Moens DUCHARME, of the' village of Cohoes, in the county of Albany and State of New York, have in vented a new and useful Improved Lockior Trunks, Chests, and other Depositories; and I do hereby declare that the following contains a full and exact` description ofthe same, reference being had to the annexed drawings, which make a part of this specitication, and in whichy Figure 1 is an outside view of one of my improved locks as it appears upon a trunk, a part of which latter is shown. Fig. 2 is an elevation of the back side of the same, a

`part of the back-plate of the lock being broken` away to sh'ow the working parts within. Fig. 3 is an edge elevation of the same lock, the part of the trunk to which the lock is secured `being shown in section.

Fig. 4 is a front elevation of the same, with,

the clasp, escutcheon, and part of the .outer plate removed. Fig. 5 is a longitudinal cross-section ,of the same lock. Fig. 6 is a back elevation of another form of my improved lock, a part of the back-plate` being broken off.` Fig. 7 is a perspective view of the front or outer plate, Fig. 8 of the back or inner plate, Fig. 9 of the escutcheon, Fig. 10 of the hasp or clasp, and Figs. 1l and l2 of the pivoted or swinging bolthooli, of the lock shown by Figs. l, 2, 3, 4 and 5,-

the part which forms the talon and` racks or notches, Fig. 12, being detached from the hook-bolt, Fig. 11. The same letters refer to like parts in all the figures; and the movements of the parts are indicated by dottedlines in Figs. 1, 3, 4 and 6.

My invention consists in the hereinafter described peculiar construction and arrange ment of the working parts of the lock. Also in the particular construction hereinafter described whereby all the parts of the lock are at once secured together, and to the door, trunk, or chest to which the lock is applied.

In the annexed drawings the hook-bolt of the lock is distinguished by the letter A; the hasp, clasp, or shackle of the lock, by B; the key-hole escutcheon, by C; the spring-tumbler and escutcheon-spring, by D J the key, by E; the front or outer plate of the lock, by F; the back or inner plate, by H; the part of the door, trunk or chest to which the lock is secured, by G; and the hasp of the trunk or chest-lid, by I.

The shackle, B, of the lock` has, on the back side of the front plateV F, an axis, a; upon which axis the shackle can be turnedjl'l g or rocked in a plane perpendicular, or

` through an aperture, in the front-plate;

and when the shackle is in the position to be locked` it reaches from the aperture b, along the front side of the front plate, to another aperture, o, in the front plate, through which latter aperture, and an opposite one,

cl, in the bacleplate H, the shackle B then 1also extends inward and terminates back of the back plate.1 That part, e, of the shackle which is passed through the plates F and H is to secure the hasp, I, of the ldoor or lid of the safe, chest or trunk. The

bolt, A, is mounted on a stud or pivot, f, on the front side of the back-plate. so that the bolt can be turned in an arc the plane of which is perpendicular or nearly perpendicular to the plane of motion of the shackle B. One arm of the bolt A extends from its axis f to and through an opening, g, in the back-plate, and along the back side of the back plate to or past the aperture d. Those parts of the bolt A and shackle B which extend back of the back plate are so made, with a hook, L, and a loop, z', or equivalent devices, that the shooting of the bolt engages the bolt with the shackle and thus prevents the latter from being withdrawn from the hasp I. The other arm of the bolt A is acted upon by the key E and the spring-tumbler D, either directly. as shown by Fig. 6, or through the intervention of a sliding bolt, Z, having the talon j, and tumbler stud, 7c, as shown by Figs. 2, 3, 4, 5, 11 and l2. AA projection, Z, formed on the lever-bolt A, bears against the axle, a, of the shackle B, and thereby not only tends to hold the lever A in place on its axis. but also keeps the axle of the shackle in its seats, m, m.'

nAs the key, E, is turned in its place in, the lock, the bit of the key then first lifts the end n of the spring-tumbler D above the stud le; and next presses against the bolt A so as to move and either engage the latter with, or disengage the bolt from the shackle B; and finally drops and leaves the end n llt) of the tumbler on the other side of the stud c fromthat from which the tumbler was last raised by the key. Wards, 0, p, may be arranged to guard the tumbler and bolt.

The escutcheon, C, has lugs, g, g, which extend backward through, and slide within slots, `1*, r', inthe front plate F, and thereby secure the escutcheon to that plate. The same part that forms the bolt-tumbler D, constitutes the spring J which constantly presses against a lug g on the escutcheon C so as to cause the latter to cover or hide the key hole, s, in the front plate F, when the key is out ofthe lock. By bearing down on vthe escutcheon C, the spring J may be overcome and thel escutcheon moved so as to bring an opening, t, in the escutcheon opposite to thekey-hole as shown by the dotted lines in Fig. l, and allow the key to be passed through the aperture in the escutcheon and inserted in the lock. See Fig. 5. The shackle B has a tail u; and whenever the shackle is in the position to be locked, as shown in Fig. 5, and the key is at the same time either out of the lock, or in it and in anyof the positions shown by Figs. 2, 4, 5 and' 6, the tail, u, of the shackle will then eX- tend over or down in front of-a part o -of the escutcheon, as is clearly shown in Fig. 5,

so that the part e of the shackle may be pre-4 vented from being withdrawn from the hasp I by the escutcheon C on the front side of the lock as well as by the bolt A at the back.

.. Consequently the mere disengagement of `the bolt A from the shackle B will not generally release the ,shackle B. The part fu of the escutcheon must also be withdrawn frombetween the tail u of the shackle, and the front plate F. This latter may be effected by turning the key E linto a certain position,

- so that the part fw of the key will bear dian escutcheon C, shackle B, and bolt-A, all' combined, constructed and arranged together and with a single spring D J, which at once forms the spring-tumbler of the bolt and the forated trunk or chest G, by means of notched lugs, y, y, y, formed in one piece of metal with, and arranged upon, the front plate F, in connection with corresponding slots, z, z, z, made in theback plate H, the whole being Vformed and arranged substantially as is shown by -the annexed drawings whereby the lock'is at once both secured together and to the trunk or chest by means of the front and back-plates themselves alone; and -in such a manner that while it is impossible to remove the lock from the trunk when it is locked, yet, when unlocked, the lock can then be taken off from the trunk and apart, for repairs, and again put together and upon the chest or trunk, by the hands alone, without requiring the use of a screw driver or any other tool whatever. `f

Having thus described my improved lock, what I claim thereof as new and desire to ,secure by Letters Patent isl. The combination of the latch-bolt A, shackle B, escutcheon C, and spring-tumbler and escutcheon-spring D J, all constructed and arranged substantially as herein shown and specified.

2. The construction of the front plate, F, with notched lugs, y, and the back plate, I-I, with corresponding slots, a, as and for the purposes herein set forth.

i MOSES DUCHARME.

, litnessesz c PETER D. NIVER, MICHAEL DUGAN. 

